Emil and Alina Lețu are members of „Betania” Brethren Church from Focsani. This family has been several times in short-term mission journeys in Mongolia, in 2013, 2014, 2015, 2016 and 2017, various members of the family went there, one at a time or together and they engaged in different ways in the work there. Since August 2017, they are in Mongolia for long-term mission work.